Step 3 Next, simplify. Recall that exponents must be evaluated before multiplication and that a² = a · a. A = 3.14(9)² A = 3.14 A = A Note that the units for A are feet times feet which is feet squared or square feet. Rounding up to the next whole number, the amount of tile needed to construct the circular mosaic is Submit Skip (you cannot come back) square feet.

Example 2 Using the Distance Formula Bird Watching A bird watcher uses a grid to photograph and record the locations of birds feeding on the ground. The grid is made of fishing net with strands that are 1 foot apart. In the grid shown, each point represents the location of a bird. How far apart are the birds at points A and B? y IC 6. 4. 3 2 D 1 2 3 4 56 7 8 9 Solution The coordinates of point A are (3, 2). The coordinates of point B are (7, 5). V(x,- x,² + ( - y,)² = V(7 – 3)2 + (5 – 2)? d = Distance formula Substitute 7 for x,, 3 for X,, 5 for y,, and 2 for y,. %3D =DV4? + 32 Subtract. %3D = V16 + 9 Evaluate powers. = V25 Add. = 5 Simplify. Answer The birds at points A and B are 5 feet apart. Guided Practice for Example #2 3) In the above example, how far apart are the birds at point C and point D?

VI V5 V2 V3 VA

Break down for me to understand

Fill in the blank. A exists between two variables when the values of one variable are somehow associated with the values of the other variable. A exists between two variables when the values of one variable are somehow associated with the values of the other variable. Click to select your answer(s).

6cose+3=0

Name a chord

Solution set